www.catflapfittersouthlondon.co.ukCatflap Fitter South London

South London Cat Flap Fitters

Cat Flap Fitting Services in TW20 South London and surrounding area's

We specialise in professional cat flap installations for a wide range of surfaces, including:

 Cat flaps installation in glass  upvc-door-panels-for-catflaps Glass door cat flap installation

Over 30 Years of Industry Experience

Call Us: 0208 098 2021
Email Us: sales@catflapfittersouthlondon.co.uk

Why Choose Us for Your Cat Flap or Dog Flap Installation?

  • Trusted Experts: Over 30 years of experience in the glass and glazing industry, with 15 years focused on pet door installations.
  • Wide Range of Surfaces: We fit flaps in UPVC, wood, composite, metal, and double-glazed units (including patio and French doors).
  • High-Quality Materials: Replacement UPVC panels are reinforced for durability. Double-glazed units are manufactured in-house for precision and quality.
  • Affordable Pricing: We keep costs low and pass the savings directly to you.
  • Experienced Team: With 6 trusted fitters installing over 200 cat and dog flaps monthly, you’re in safe hands.
  • Customer Satisfaction: Don’t just take our word for it—read our glowing reviews!

Popular Cat and Dog Flaps We Install

We’re experienced in installing a variety of flaps, including:

How We Work: Cat Flap Installation in Double Glazing

If you need a cat flap in a double-glazed unit, we’ll replace the glass with a new custom-made double-glazed unit. This process takes 3–5 working days from measurement to fitting. All units are manufactured at our factory to ensure the highest standards.


Contact us today 0208 098 2021 to discuss your requirements or to get a free, no-obligation quote!

Cat Flaps in Wooden Doors - Cat Flaps in UPVc Panels - Cat Flaps in Glass & Double Glazing - Dog Flaps

How to train your cat or dog to use their new pet flap

Some cats will approach a cat flap with curiosity, while others may be a bit more wary. Here is five easy steps to help get your cat using its new cat flap.

Cold every time you have to get up and let the cat in or out - woken in the middle of the night - sound familiar, then its possibly time you fitted a cat flap/dog flap!

Click for step by step proven guide
How to train your cat or dog to use their new pet flap

What our customers say

Choosing the right pet flap for your Pet

Choosing the right pet flap for your Pet

There are a variety of pet flaps available. Our most popular brands include Catmate, Staywelland Sureflap, available in the following types:

4 WAY PET FLAP
2 WAY PET FLAP
Infra-Red Collar Pet Flap
Magnetic Collar Pet Flap
RFID MICROCHIP PET FLAP

See more on the cat flap fitter page

Frequently asked questions

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No - The cat flap/catflap must be glass fitting and circular as it is very expensive to cut a square hole, although not impossible.

Cat flaps come with a kit that includes a paper template that guides you exactly where to drill. With the help of markings, drill a hole in to each corner of the template. Once you have done with drilling the holes, you can get the shape of your cat flap accordingly. These are great for wooden, UPVC/plastic and metal doors, but would recommend a professionaal for anything to do with glass.

No - The glass in the door should already be toughened and you can not cut toughened glass, so we will need to replace the unit (worth hanging on to the double glazed unit we take ut as should you move or need to put this back at a later date will save you some money).

Yes - as cat flaps come in different sizes, models, automatic etc. it is best to talk to us first in order that you can ask all the questions you require answered on the most popular brands. We offer a selection of cat flaps and pet doors, we highly recommend that you take a brief look at the options prior to making a decision. We have added a link from our site to some of the most popular brands.

It varies, but usually takes around 1 hour to install a cat flap in wood, UPVC, metal or a composite door, if it is a cat flap in glass or a double glazed unit, the glass will be toughened safety glass and usually take 3-5 working days to remanufacture and about 30 minuites to install again subject to type and style of door or frame.

We're afraid not as the glass is already toughened when you try to cut it and the glass would break into hundreds of thousands of pieces!

  1. We would arrange to visit your home or property at a convenient time to get an exact measurement of the current double glazed unit in the door, check what pattern you have and offer a like for like or an alternative if the glass is no longer manufactured.
  2. We would then cut 2 new pieces of 4mm float glass (plain or pattern of your choice) to the exact size as measured, cut a hole in both pieces of glass for the cat flap and then have the glass toughened. (What is toughened glass).
  3. Approximately 2-3 day later the cat flap glass will be ready to collect from the toughening plant.
  4. We will then create a sealed doubel glazed unit which will have the hole perfectly placed for the installation of the cat flap.
  5. We will then arrange a convenient time with you to replace your current double glazed unit with the new cat flap ready double glazed sealed unit.
  6. The cat flap is installed once at the property

Just be prepared to be a bit more patient with older cats who may not have used a cat flap before. Use a food reward for your cat and try playing in close by so they get used to being nect to it. Leave the flap open so they can see outside as curiosity will entice them closer until they eventually go through it. 

Areas we cover

Postcodes   SW17   SW5   SE20   SE24   SW20   SW6   SW19   SW2   SE18   SE6   W7   SE3   SW10   W12   SE21   BR2   DA1   SE28   SE12   SE26   DA4   SE7   BR6   TW10   SW1   DA13   SE25   BR5   BR7   SE10   TW4   DA5   SW18   SW9   SW14   SE15   SE9   SW16   TW8   TW3   DA11   SW11   DA6   SE4   W10   W3   SE19   DA17   W8   SE5   BR4   TW1   W1   TW14   TW15   BR8   TW19   DA16   W14   DA12   TW5   BR1   SW13   SW1A   SE8   SE16   TW11   DA9   SW4   DA14   DA3   SW7   TW7   SE11   W13   SW3   SE27   W6   W4   DA10   TW13   BR3   TW17   TW20   SE14   SE13   W9   W11   SE2   W1M   SW8   SW15   TW9   SE17   W2   TW16   DA2   SW12   DA15   TW12   SE1   SE22   SE23   W5   TW18   DA8
Towns   Castlenau   Syon House   Crockenhill   Gloucester Road   Bexley   Crystal Palace   Grove Park   Greenwich   Wimbledon Park   Western Avenue   Lambeth   Stockwell   Chiswick   Loughborough Junction   Vauxhall Bridge   Stone   Crofton Park   Canary Wharf   Victoria   Mayfair   Rotherhithe   Shooter's Hill   Bedford Park   Stanwell Moor   Clapham South   West Kensington   Honor Oak   South Street   Lancaster Gate   Deptford   Cromwell Road   Norwood Junction   Rocks Lane   Southwark   Wandsworth   Stamford Brook   Maida Vale   Lesnes Abbey   Hither Green   Sole Street   Bromley   Ealing Common   Crystal Palace   New Barn   Ladywell   Betsham   Queensway   Shepherds Bush   Hatton   Westminster   Lambeth   Piccadilly Circus   Woodside   Ealing   West Brompton   Olympia   Marble Hill   Staines   Vauxhall   Coldblow   Richmond   New Eltham   Raynes Park   Ham   Ravenscourt Park   Ladywell   Sidcup   Warren Street   Foots Cray   Gipsy Hill   Clapham Common   Hammersmith   Copse Hill   Hanworth   Thorpe   Waterloo   Upper Norwood   Barons Court   Gunnersbury   Singlewell or Ifield   Wandsworth Town   Westbourne Green   Southfleet   Brentford   Kensington   Bostall Woods   Acton Town   Cooper's Hill   Battersea   Sydenham Hill   North Kensington   Balham   Paddington   Upper Tooting   Plumstead   Chiswick High Road   Earl's Court   Forest Hill   Tulse Hill   Longfield Hill   Anerley   Barnes   St Paul's Cray   Merton   Fulham Palace Road   Hayes   Bellingham   Furzedown   Riverside   Culverstone Green   Swanscombe   East Acton   Bromley Common   Hounslow Central   Kew   Englefield Green   Buckingham Palace   Shorne   Bayswater   Longfield   Gravesend   Perry Street   Colliers Wood   Slade Green   Ranger's House   Haydons Road   Meopham Green   Abbey Wood   Nunhead   Turnham Green   Welling   Knockholt Station   Mottingham   Osterley   North Dulwich   Chislehurst Caves   Eynsford   Ashford   Great Portland Street   Clapham   Boston Manor   New Ash Green   Bickley   East Sheen   Southfields   Feltham   Beckenham   Hounslow   Tooting Broadway   Belvedere   Kensal Town   Greenhithe   Fulham Palace Road   Cromwell Road   Camberwell   Walworth   Lee Green   Bushy Park   Richmond upon Thames   Woolwich   Green Street Green   Wimbledon   Erith   Chelsea   Downe   Edgware Road   Pratt's Bottom   Blackheath Park   Hartley   Well Hill   Peckham Rye   Tulse Hill   Wraysbury   Old Kent Road   Elthorne Park   Ladbroke Grove   Lewisham   Wandsworth Common   Richmond Park   Warwick Park   Down House   Hounslow West   Clapham Junction   Shepperton   Blackheath   Lewisham   West Heath   Deptford   Great West Road   Coldharbour Lane   Sloane Square   West Kilburn   High Street Kensington   Swanley   Heston   Kensington & Chelsea   Bean   St John's   Queens Road   Putney Heath   Hyde Park   Southwark   Keston   Norwood   West Dulwich   Lambeth   Locksbottom   Sydenham   Grove Park   Chalk   Cranford   Oval   Sunbury   Maida Hill   Istead Rise   Streatham Hill   Hammersmith   Ladbroke Grove   Farningham   Western Avenue   East Wickham   Elephant & Castle   Streatham   Eltham   Marble Arch   Dulwich   Meopham   East Putney   Upper Sydenham   Chelsea Embankment   Borough   Latimer Road   St Mary Cray   Nine Elms   Hanwell   Holland Park   Laleham   Putney Bridge   Streatham Common   Deptford High Street   Well Hall   Warwick Avenue   Hyde Park Corner   Orpington   Upper Halliford   Eden Park   Ham House   Kew Gardens   West Norwood   Kennington   Wilmington   Littleton   Belgravia   Earlsfield   Shorne Ridgeway   Rye Lane   North Ealing   Charlton   Stockwell   Park Lane   Notting Hill   Putney   Regent Street   Kingston upon Thames   Fawkham Green   Chelsfield   Horniman Museum   Chiswick Park   Acton   Herne Hill   Southwark Cathedral   Thamesmead   Hyde Park   Hounslow East   Horton Kirby   Lee   Brockley   Westbourne Grove   Sands End   Brompton   Twickenham   Clapham North   Oxford Street   Putney Vale   Tooting Bec   St James's Park   Lower Sydenham   Kennington   Bushey Mead   Summerstown   East Bedfont   Wimbledon Common   Bedford Park   Surrey Quays   Paddington   South Wimbledon   Green Park   Lavender Hill   Mortlake   Teddington   Norbury   Thamesmead   Marylebone   Knightsbridge   Merton   South Ealing   Kensington Gore   Westminster Abbey   Cottenham Park   Green Street Green   Brixton   Horseferry Road   Parsons Green   Goodge Street   Fulham Broadway   Harvel   Westway   Brook Green   South Acton   Royal Oak   West Hill   Bermondsey   East Dulwich   Cobham   South Darenth   Notting Hill Gate   Leaves Green   Northfleet   Tottenham Court Road   Darenth   South Kensington   Shooter's Hill   Egham   Denmark Hill   Holland Park   Kidbrooke   Queen's Gate   Hanger Lane   Hammersmith & Fulham   Lane End   Westbourne Park   Farnborough   Fulham   Avery Hill   Docklands   Newington   Hawley   New Cross   Elmers End   Bond Street   White City   Wandsworth Road   Chelsea   Luddesdown   Lambeth North   Goldhawk Road   Hythe End   Brompton   South Norwood   City of Westminster   Thong   Penge   Acton Green   Brompton Road   Goldhawk Road   London Bridge   West Wickham   Crayford   Drayton Green   Dartford   Ealing Broadway   Honor Oak Park   Tooting Graveney   Uxbridge Road   New Kent Road   Marylebone   Osterley Park   South Lambeth   South Bank   Hextable   Sutton at Hone   Vauxhall   Catford   Peckham   West Ealing   Westminster Bridge   Ealing   Cheyne Walk   Stanwell   Camer   North Cray   East Dulwich   Northfields   Bermondsey   Hampton   Boston Manor   Erith Marshes   Chiswick House   Chislehurst   Pimlico   Soho   Oxford Circus   Barnes Bridge   Vigo Village   Bexleyheath   New Cross Gate   Bayswater Road   Roehampton   Hounslow   Hook Green   West Acton   Isleworth
Counties   Berkshire   Kent   Greater London   Surrey
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